Power factor correction capacitor PRB series

metalized polypropylene filmaluminumcylindrical

1. Application HYDRA PRB DPM(g) three-phase capacitors are designed for power factor correction (PFC) in low voltage networks. They may be used for: - individual fixed PFC of motors, transformers, etc. - automatic PFC equipment - tuned and detuned capacitor banks 2. Construction The HYDRA PRB DPM(g) capacitors have three separate windings from metalized polypropylene film placed in a cylindrical aluminum can. The partial capacitances may be connected either in star or delta configuration. The use of three separate stacked windings guarantees low losses, optimal surge current performance and good heat drain from the windings. A high-vacuum drying of the windings gives long service life with constant capacitance. HYDRA capacitors are filled with a PCB-free natural oil (PRB DPM) or with gas (PRB DPMg). 3. Terminals The terminal is designed as a double 3-pole terminal block (IP20). It is possible to clamp multiple-wires with a cross section up to 35 mm² 4. Self-healing Due to switching operations, inadmissible voltage peaks of up to 3 times that of the rated voltage can occur in low voltage networks. If these stresses affect a dielectric breakdown, the self-healing mechanism will function. After self-healing, the capacitor continues its complete operation. The decrease in capacitance is negligible.